Fit Guide


The National® Fit & Sizing Guide

Clothing Designed for your Comfort

If you like timeless separates with a relaxed, generous fit, then National's clothing is made for you - the traditional woman who wants comfy, easy-to-wear classics in her closet. With fuller arms and give around the midsection, our clothes offer ease of movement so you are always comfortable. Crafted of the softest fabrics in flattering, versatile styles, our clothing never pinches, binds or chafes.

All of our Size Charts - All in One Place

At National® we want to make it as easy as possible for you to find the right size. That's why we have put our size charts in one place, along with our fit and measurement information. We want you to feel confident that you have the correct size and fit every time you place an order.

Living the comfortable life
Size & Fit Questions

Did you know that there is no such thing as standard sizing? Don't worry. Our friendly Customer Service representatives are here to help. They are available to answer all of your sizing and fit questions Monday through Friday, 8:00 am to 6:00 pm EST (Saturdays from 8:00 am to 12:00 noon EST).

Call us toll-free at 1-800-433-0580.

Petite Sizes

If you are 5'4" or under, our Petite sizes are designed with you in mind. Based on height, rather than weight, our Petite sizes are proportionately shorter, not smaller. To ensure the best fit for you, we adjust the armholes, sleeve length, and total length of tops, as well as shorten the rise and inseam of pants and the length of skirts.

Women's Sizes

If you have a fuller figure, our Women's (plus) sizes are strategically designed to fit your body and flatter your shape. We make our Women's sizes proportionally larger by adding length to tops and dresses and increasing the circumference of the chest and waist.

All measurements are in inches.

Misses and Petites Size Guide
Womens and Womens Short Size Guide

How to Measure


Determining the right bra size

With your arms down and relaxed at your sides, 1 measure around the fullest part of your bust while keeping the measuring tape level and parallel to the floor. (This is your bust size.) 2 Then measure around the chest, above the bust and under your arms. This is your band size. Subtract your band size from your chest size and this is your cup size. Each inch represents a cup size. See below. (Helpful tip: Make sure the measuring tape is wrapped around your shoulder blades and under your arms.) 

Cup Size Conversion

Breath easy

3 While keeping the measuring tape comfortable around your waist and parallel to the floor, measure around your natural waistline. (Helpful tip: You can find your natural waistline by bending to one side and finding the indentation or crease.)


Keep the tape loose

4 Stand with your feet together and measure around the fullest part of your hips while keeping the measuring tape parallel to the floor. (Helpful tip: Your hips are about 7.5" to 8" below your waist.)

What's my underwear size

Your best length

5 Holding the measuring tape perpendicular to the floor, measure down the inside of your leg from your crotch to the base of your ankle. (Helpful tip: You can also find your inseam by measuring a pair of your favorite pants. Lay the pants on a flat surface and mea-sure the inside leg seam from the crotch to the hem.)

Skirt Length

Make sure it hits you just right

6 With the measuring tape perpendicular to the floor, measure from your natural waist along the outside of your leg to below your knee, mid calf, lower calf, or ankle. (Helpful tip: To find your natural waist, bend to the side and find the crease.)

Helpful Hints

  • Order oversized loungewear, dresses, sweaters, and tops nearest to your bust measurement.
  • Order pants, shorts, and skirts nearest to your hip measurement.
Size Measurement Locations
Therapeutic Hosiery Size Guide
Therapeutic Hosiery

Choosing the right compression

To relieve leg pain and help with circualtion try one of our two lines of therapeutic hosiery. Both are made in the U.S.A. and both offer the same benefits as higher market lines in the industry.

Knee High or Over-the-Knee: measure the ankle and calf.

Thigh High or Panty Hose: measure ankle, calf, and thigh.

For all other styles please reference the specific size chart on each of the following product styles: Run Resistant, Sheer, Support, and Cotton Sole lines.

Need some assistance? We're here to help!

Call us toll-free at 1 (800) 433-0580

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